Campaign tags and filters

When sending a campaign, you are able to use a number of custom tags and filters.
Most common tags are listed below:

Tag

Required

[UNSUBSCRIBE_URL]

YES

[COMPANY_FULL_ADDRESS]

YES

[UPDATE_PROFILE_URL]

NO

[WEB_VERSION_URL]

NO

[CAMPAIGN_URL]

NO

[LIST_NAME]

NO

[LIST_SUBJECT]

NO

[LIST_DESCRIPTION]

NO

[LIST_FROM_NAME]

NO

[CURRENT_YEAR]

NO

[CURRENT_MONTH]

NO

[CURRENT_DAY]

NO

[CURRENT_DATE]

NO

[COMPANY_NAME]

NO

[COMPANY_ADDRESS_1]

NO

[COMPANY_ADDRESS_2]

NO

[COMPANY_CITY]

NO

[COMPANY_ZONE]

NO

[COMPANY_ZIP]

NO

[COMPANY_COUNTRY]

NO

[COMPANY_PHONE]

NO

[CAMPAIGN_SUBJECT]

NO

[CAMPAIGN_TO_NAME]

NO

[CAMPAIGN_FROM_NAME]

NO

[CAMPAIGN_REPLY_TO]

NO

[CAMPAIGN_UID]

NO

[SUBSCRIBER_UID]

NO

[EMAIL]

NO

[FNAME]

NO

[LNAME]

NO

Now, each of the above tags is able to receive a set of filters.
Filters are a simple way of transforming the tag in a way or another, for example you might want to embed a sharing link to twitter in your campaign, say the campaign url itself.

Pretty simple eh?
But we can do even more, let's say we want to make sure our twitter text starts with a capitalized letter and the rest of the letters will be lowercase.
In order to accomplish this, we can apply multiple filters(separate by a pipe) to same tag, for example:

https://twitter.com/intent/tweet?text=[CAMPAIGN_SUBJECT:filter:lowercase|ucfirst|urlencode]&url=[CAMPAIGN_URL:filter:urlencode]
Please note, the order in which you add the filters is the same order they are applied.

Bellow is the entire list of filters, for now there are a few, but in the future the number might increase.